NullpointerException when setting adapter for listview in dialog

Question

I want to display a custom dialog that have a listview inside it. First take a look on my code below.

Dialog:

protected void onPostExecute(String file_ur         


        

Answer 1

Inflate your view and use the object returned by the inflater to look for the ListView inside the layout

View view = inflater.inflate(R.layout.dialog_add, null)
ListView lv = (ListView) view.findViewById(R.id.lvAddDialog); 
ListviewContactAdapter adapter = new ListviewContactAdapter(getActivity(), listContact);
lv.setAdapter(adapter);             
builder.setView(view);